CN101465926A - Method and device for processing call through network telephone gateway - Google Patents
Method and device for processing call through network telephone gateway Download PDFInfo
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- CN101465926A CN101465926A CNA2009100761105A CN200910076110A CN101465926A CN 101465926 A CN101465926 A CN 101465926A CN A2009100761105 A CNA2009100761105 A CN A2009100761105A CN 200910076110 A CN200910076110 A CN 200910076110A CN 101465926 A CN101465926 A CN 101465926A
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- H04L12/66—Arrangements for connecting between networks having differing types of switching systems, e.g. gateways
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Abstract
The invention discloses a calling processing method of a network telephone gateway. The method comprises the following steps: a capability set of a local terminal media is loaded by a calling party, and a routing table of a codec corresponding to the network grading is established; performance index of the present network is obtained, and the grading is carried out on the situation of the present network according to the performance index; the codec which meets the grading result of the present network in the loaded media capability set is retained, the preferential selecting sequence of the retained codec is defined, and the capability set of an outgoing media is obtained; the providing message carrying the obtained capability set of the outgoing media is sent to a far end by the calling party. In addition, the method discloses the calling processing method of the network telephone gateway, relating to the calling processing method of self-adapting network situation by a called party. The method further discloses a calling processing device of the network telephone gateway. By adopting the method, the communication quality of a network telephone is improved and the user experience of the network telephone service is promoted.
Description
Technical field
The present invention relates to the networking telephone (VoIP) technical field, particularly a kind of voip gateway adaptive network situation is carried out the method and the device of call treatment.
Background technology
VoIP is as a focus in current internet, applications field, its operation principle is: local terminal is done compressed encoding with the voice signal on the subscribers feeder and is handled, be packaged into RTP/User Datagram Protoco (UDP)/Internet protocol (RTP/UDP/IP) packets of voice, and transmit by IP, after packets of voice is received in the opposite end, by decoder processes, make and produce voice signal on the subscribers feeder again.
When prior art is selected codec at Session Description Protocol (SDP) negotiation phase, generally do not consider the situation of current access network.But, because the access network at voip gateway place has nothing in common with each other, bandwidth performance, the transmission quality of network environment all there are differences, therefore, if codec and the current access network situation selected in the SDP negotiation stage do not match, then can reduce the speech quality of VoIP, finally influence the user experience of VoIP business.
Summary of the invention
In view of this, the method and the device that provide a kind of voip gateway to carry out call treatment is provided main purpose of the present invention, can improve the speech quality of VoIP.
For achieving the above object, technical scheme of the present invention is achieved in that
A kind of gateways for network telephone call carries out the method for call treatment, may further comprise the steps:
The calling party loads local terminal media capability collection, and sets up codec and the network corresponding selection routing table of grading;
Obtain the performance index of current network, and current network conditions is graded according to network performance index;
Keep the media capability that has loaded and concentrate the codec that satisfies the current network rating result, and determine the preferential selecting sequence of the codec of reservation, obtain the outer media capability collection of sending out;
The calling party sends giving information of outer media capability collection carrying acquisition to the opposite end.
Wherein, the media capability that described reservation has loaded concentrates the codec that satisfies the current network rating result to be specially: the codec that described media capability is concentrated is inquired about the selection routing table of having set up one by one, if described codec satisfies current network rating result, then keep this codec, otherwise, ignore this codec.
Wherein, described network performance index is initiatively obtained by the calling party, and perhaps the mode with static configuration offers the calling party.
A kind of gateways for network telephone call carries out the method for call treatment, may further comprise the steps:
After receiving giving information that the opposite end sends, the callee loads local terminal media capability collection, and sets up codec and the network corresponding selection routing table of grading;
The media capability collection of consulting the callee with receive give information in opposite end media capability collection, obtain the media negotiation capability set;
Obtain the performance index of current network, and current network conditions is graded according to network performance index;
Keep the codec that satisfies the current network rating result in the media negotiation capability set obtained, and, determine the media negotiation result according to the preferential selecting sequence of the codec that keeps;
The callee sends the response message that carries the media negotiation result to the opposite end.
Wherein, the codec that satisfies the current network rating result in the media negotiation capability set that described reservation has obtained is specially: the codec in the described media negotiation capability set is inquired about one by one the selection routing table of having set up, if described codec satisfies current network rating result, then keep this codec, otherwise, ignore this codec.
Wherein, described network performance index is initiatively obtained by the callee, and perhaps the mode with static configuration offers the callee.
A kind of gateways for network telephone call carries out the device of call treatment, comprising:
Media capability collection load-on module is used for the calling party and loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media capability collection processing module is used to keep the media capability that has loaded and concentrates the codec that satisfies the current network rating result, and determines the preferential selection ordering of the codec of reservation, obtains the outer media capability collection of sending out;
Message transmission module is used for the calling party and sends giving information of outer media capability collection carrying acquisition to the opposite end.
A kind of gateways for network telephone call carries out the device of call treatment, comprising:
Media capability collection load-on module is used for after receiving giving information that the opposite end sends, and the callee loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The media negotiation module is used for consulting callee's media capability collection and the opposite end media capability collection of receiving that gives information, and obtains the media negotiation capability set;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media negotiation capability set processing module is used for keeping the codec that the media negotiation capability set that has obtained satisfies the current network rating result, and sorts according to the preferential selection of the codec that keeps, and determines the media negotiation result;
Message transmission module is used for the callee and sends the response message that carries the media negotiation result to the opposite end.
A kind of gateways for network telephone call carries out the device of call treatment, comprising:
Media capability collection load-on module is used to load local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
The media negotiation module is used for consulting the media capability collection of local terminal and the opposite end media capability collection of receiving when device during as the callee, obtains the media negotiation capability set;
The media capability processing module to the processing of the media capability collection that loaded, and obtains the outer media capability collection of sending out when being used for finishing device as the calling party; When perhaps being used for finishing device as the callee to the processing of the media negotiation capability set that obtained, and definite media negotiation result;
Message transmission module is used for when device during as the calling party, sends giving information of outer media capability collection carrying acquisition to the opposite end, perhaps is used for carrying media negotiation result's response message to the opposite end transmission when device during as the callee.
Wherein, described media capability processing module further comprises:
Media capability collection processing module is used for when installing as the calling party, keeps the concentrated codec that satisfies the current network rating result of the media capability that has loaded, and a media capability collection outside obtaining is sorted in the preferential selection of definite codec that keeps; And
Media negotiation capability set processing module is used for keeping the codec that satisfies the current network rating result in the media negotiation capability set that has obtained when installing as the callee, and sorts according to the preferential selection of the codec that keeps, and determines the media negotiation result.
As can be seen from the above technical solutions, the present invention selects routing table by setting up, and detect current network conditions in real time, make voip gateway can select the codec that mates with current network conditions adaptively in the SDP negotiation stage, thereby can improve the speech quality of VoIP, promote the user experience of VoIP business.
Description of drawings
Fig. 1 carries out the flow chart of call treatment for calling party's adaptive network situation of the present invention;
Fig. 2 carries out the flow chart of call treatment for callee's adaptive network situation of the present invention.
Embodiment
For the technical staff who makes the technical field of the invention more clearly understands the present invention, now be described with reference to the accompanying drawings.
As shown in Figure 1, calling party's adaptive network situation process of carrying out call treatment may further comprise the steps:
Step 101, after detecting user's off-hook, the calling party loads local terminal media capability collection, and sets up codec and the network corresponding selection routing table of grading;
Wherein, described media capability collection comprises the codec that all local terminals are supported; Described network grading is meant the network hierarchy of being determined by the network performance index of different stage;
Here, setting up the selection routing table is to select suitable codec to prepare for next step according to the real network situation.Table 1 is for selecting an example of routing table, and is as shown in table 1, and it is good that network is rated 1 grade of expression current network conditions, then all is suitable for for the higher and lower codec of encoding and decoding speed; It is general that network is rated 2 grades of expression current network conditions, then should be suitable for the moderate codec of encoding and decoding speed; It is relatively poor that network is rated 3 grades of expression current network conditions, then can only be suitable for the lower codec of encoding and decoding speed;
The media capability collection also comprises other SDP parameters except that comprising codec, how to determine that specifically other SDP parameters are prior art, is not emphasis of the present invention, so no longer describe in detail.
| Codec | The network grading |
| G.722、G.711u/a、G.729 | 1 |
| G.711u/a、G.729 | 2 |
| G.729 | 3 |
| … | … |
Table 1
Step 102 is obtained the performance index of current network, and according to network performance index current network conditions is graded;
Wherein, if voip gateway possesses the ability that detects the network real-time status, then the calling party can obtain the performance index of current network automatically; If voip gateway does not possess the condition of obtaining automatically, then can carry out qualitative evaluation, and the mode by static configuration to current network conditions, the performance index of current network are offered the calling party;
Wherein, the performance index of network mainly refer to the bandwidth of current network, and correspondingly, the network grading is mainly determined by bandwidth.For example: the network that can be 128k with lowest-bandwidth is made as 1 grade; But in actual applications, specifically what the network of how many bandwidth being made as need decide on actual conditions.
Step 103 keeps the media capability that has loaded and concentrates the codec that satisfies the current network rating result, and determines the preferential selecting sequence of the codec of reservation, obtains the outer media capability collection of sending out;
Here, keeping the media capability that has loaded concentrates the codec that satisfies the current network rating result to be embodied as: the codec that media capability is concentrated is inquired about the selection routing table of having set up one by one, if codec satisfies current network rating result, then keep this codec, otherwise, ignore this codec;
The preferential selecting sequence of the codec that keeps is definite according to the network grading, and purpose is can preferentially select code rate to adapt to the codec of current network conditions most for the media negotiation stage afterwards; For example, suppose that current network is rated 2 grades, shown in the associative list 1, G.711u/a the preferential selecting sequence of codec should be 〉=G.729;
Be the outer media capability collection of sending out via the media capability collection after the above-mentioned processing, it comprises all local terminal supports and codec that be complementary with current network conditions, and other SDP parameters.
Step 104, the calling party sends to the opposite end (OFFER) is provided message, carries outer media capability collection of acquisition in the OFFER message.
It is in order to carry out SDP negotiation with the opposite end, to provide prerequisite for both sides set up conversation that the calling party sends OFFER message.
Callee's adaptive network situation is carried out the similar of the process of call treatment and calling party, but the characteristics of self are also arranged, and describes below in conjunction with Fig. 2.As shown in Figure 2, callee's adaptive network situation process of carrying out call treatment may further comprise the steps:
Here, described media capability collection comprises the codec that all local terminals are supported; This step is similar with step 101, so no longer describe in detail.
Here, carrying out media negotiation is for both call sides is reached an agreement with regard to coded system and the media combination used in the session, therefore, the common factor of the media capability collection that described media negotiation capability set is the callee and the media capability collection of opposite end comprises the codec that local terminal and opposite end are all supported in the described media negotiation capability set.
Step 203 is obtained the performance index of current network, and according to network performance index current network conditions is graded;
This step is similar with step 102, so no longer describe in detail.
Step 204 keeps the codec that satisfies the current network rating result in the media negotiation capability set obtained, and according to the preferential selecting sequence of the codec that keeps, determines the media negotiation result;
Here, keeping the codec that satisfies the current network rating result in the media negotiation capability set that has obtained is embodied as: the codec in the media negotiation capability set is inquired about one by one the selection routing table of having set up, if the codec in the media negotiation capability set satisfies current network rating result, then keep this codec, otherwise, ignore this codec;
Determine that the media negotiation result is embodied as: for example, suppose that current network is rated 2 grades, and optionally G.729 G.711u/a codec have and, then should select unique codec of G.711u/a using as the calling and called both sides according to preferential selecting sequence, thus with this codec as the media negotiation result;
Certainly, the media negotiation result also comprises other SDP parameters that negotiation is determined, but this is not an emphasis of the present invention, so no longer describe in detail.
It is for the result with SDP negotiation sends to the opposite end that the callee sends ANSWER message, if consult successfully, just can set up conversation.
Below having provided call initiator of the present invention respectively is that calling party, calling receiver are the flow process that callee's adaptive network situation is carried out call treatment, in actual application, if there is a side to support adaptive network situation call treatment, then whether support regardless of the opposing party, can be at the first-selected codec that is fit to current network conditions of SDP media negotiation stage, so, can improve the speech quality of VoIP, and promote the user experience of VoIP business.
For realizing that calling party's adaptive network situation carries out the method for call treatment, the invention allows for the device that calling party's adaptive network situation is carried out call treatment, comprising:
Media capability collection load-on module is used for the calling party and loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media capability collection processing module is used to keep the media capability that has loaded and concentrates the codec that satisfies the current network rating result, and determines the preferential selection ordering of the codec of reservation, obtains the outer media capability collection of sending out;
Message transmission module is used for the calling party and sends giving information of outer media capability collection carrying acquisition to the opposite end.
For realizing that callee's adaptive network situation carries out the method for call treatment, the invention allows for the device that callee's adaptive network situation is carried out call treatment, comprising:
Media capability collection load-on module is used for after receiving giving information that the opposite end sends, and the callee loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The media negotiation module is used for consulting callee's media capability collection and the opposite end media capability collection of receiving that gives information, and obtains the media negotiation capability set;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media negotiation capability set processing module is used for keeping the codec that the media negotiation capability set that has obtained satisfies the current network rating result, and sorts according to the preferential selection of the codec that keeps, and determines the media negotiation result;
Message transmission module is used for the callee and sends the response message that carries the media negotiation result to the opposite end.
In actual applications, for a device end, it can carry out call treatment by the adaptive network situation as the callee again as the calling party, therefore, for doing the device end that the calling party can be the callee again, the present invention proposes a kind of adaptive network situation and carry out call-processing arrangement, comprising:
Media capability collection load-on module is used to load local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
The media negotiation module is used for consulting the media capability collection of local terminal and the opposite end media capability collection of receiving when device during as the callee, obtains the media negotiation capability set;
The media capability processing module to the processing of the media capability collection that loaded, and obtains the outer media capability collection of sending out when being used for finishing device as the calling party; When perhaps being used for finishing device as the callee to the processing of the media negotiation capability set that obtained, and definite media negotiation result;
Message transmission module is used for when device during as the calling party, sends giving information of outer media capability collection carrying acquisition to the opposite end, perhaps is used for carrying media negotiation result's response message to the opposite end transmission when device during as the callee.
Wherein, the media capability processing module further comprises:
Media capability collection processing module is used for keeping the media capability that has loaded and concentrating the codec that satisfies the current network rating result when device during as the calling party, and determines the preferential selection ordering of the codec that keeps, obtains the outer media capability collection of sending out; And
Media negotiation capability set processing module is used for keeping the codec that satisfies the current network rating result in the media negotiation capability set that has obtained when device during as the callee, and according to the preferential selection ordering of the codec that keeps, determines the media negotiation result.
As the above analysis, the present invention can adopt different codecs to improve speech quality under different network conditions.For example: under the sufficient situation of the network bandwidth, can adopt the higher encryption algorithm of code rate as G.722, to obtain voice quality preferably; Under the inadequate situation of the network bandwidth, can select G.729, the encryption algorithm of these low rates G.723, to improve the service quality of VoIP business.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (10)
1, a kind of gateways for network telephone call carries out the method for call treatment, it is characterized in that, may further comprise the steps:
The calling party loads local terminal media capability collection, and sets up codec and the network corresponding selection routing table of grading;
Obtain the performance index of current network, and current network conditions is graded according to network performance index;
Keep the media capability that has loaded and concentrate the codec that satisfies the current network rating result, and determine the preferential selecting sequence of the codec of reservation, obtain the outer media capability collection of sending out;
The calling party sends giving information of outer media capability collection carrying acquisition to the opposite end.
2, gateways for network telephone call according to claim 1 carries out the method for call treatment, it is characterized in that, the media capability that described reservation has loaded concentrates the codec that satisfies the current network rating result to be specially: the codec that described media capability is concentrated is inquired about the selection routing table of having set up one by one, if described codec satisfies current network rating result, then keep this codec, otherwise, ignore this codec.
3, gateways for network telephone call according to claim 1 and 2 carries out the method for call treatment, it is characterized in that, described network performance index is initiatively obtained by the calling party, and perhaps the mode with static configuration offers the calling party.
4, a kind of gateways for network telephone call carries out the method for call treatment, it is characterized in that, may further comprise the steps:
After receiving giving information that the opposite end sends, the callee loads local terminal media capability collection, and sets up codec and the network corresponding selection routing table of grading;
The media capability collection of consulting the callee with receive give information in opposite end media capability collection, obtain the media negotiation capability set;
Obtain the performance index of current network, and current network conditions is graded according to network performance index;
Keep the codec that satisfies the current network rating result in the media negotiation capability set obtained, and, determine the media negotiation result according to the preferential selecting sequence of the codec that keeps;
The callee sends the response message that carries the media negotiation result to the opposite end.
5, gateways for network telephone call according to claim 4 carries out the method for call treatment, it is characterized in that, the codec that satisfies the current network rating result in the media negotiation capability set that described reservation has obtained is specially: the codec in the described media negotiation capability set is inquired about one by one the selection routing table of having set up, if described codec satisfies current network rating result, then keep this codec, otherwise, ignore this codec.
6, carry out the method for call treatment according to claim 4 or 5 described gateways for network telephone call, it is characterized in that described network performance index is initiatively obtained by the callee, perhaps the mode with static configuration offers the callee.
7, a kind of gateways for network telephone call carries out the device of call treatment, it is characterized in that, comprising:
Media capability collection load-on module is used for the calling party and loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media capability collection processing module is used to keep the media capability that has loaded and concentrates the codec that satisfies the current network rating result, and determines the preferential selection ordering of the codec of reservation, obtains the outer media capability collection of sending out;
Message transmission module is used for the calling party and sends giving information of outer media capability collection carrying acquisition to the opposite end.
8, a kind of gateways for network telephone call carries out the device of call treatment, it is characterized in that, comprising:
Media capability collection load-on module is used for after receiving giving information that the opposite end sends, and the callee loads local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The media negotiation module is used for consulting callee's media capability collection and the opposite end media capability collection of receiving that gives information, and obtains the media negotiation capability set;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
Media negotiation capability set processing module is used for keeping the codec that the media negotiation capability set that has obtained satisfies the current network rating result, and sorts according to the preferential selection of the codec that keeps, and determines the media negotiation result;
Message transmission module is used for the callee and sends the response message that carries the media negotiation result to the opposite end.
9, a kind of gateways for network telephone call carries out the device of call treatment, it is characterized in that, comprising:
Media capability collection load-on module is used to load local terminal media capability collection;
Select routing table to set up module, be used to set up codec and the network corresponding selection routing table of grading;
The network performance index acquisition module is used to obtain the performance index of current network;
Network grading module is used for according to the network performance index that obtains current network conditions being graded;
The media negotiation module is used for consulting the media capability collection of local terminal and the opposite end media capability collection of receiving when device during as the callee, obtains the media negotiation capability set;
The media capability processing module to the processing of the media capability collection that loaded, and obtains the outer media capability collection of sending out when being used for finishing device as the calling party; When perhaps being used for finishing device as the callee to the processing of the media negotiation capability set that obtained, and definite media negotiation result;
Message transmission module is used for when device during as the calling party, sends giving information of outer media capability collection carrying acquisition to the opposite end, perhaps is used for carrying media negotiation result's response message to the opposite end transmission when device during as the callee.
10, gateways for network telephone call according to claim 9 carries out the device of call treatment, it is characterized in that, described media capability processing module further comprises:
Media capability collection processing module is used for when installing as the calling party, keeps the concentrated codec that satisfies the current network rating result of the media capability that has loaded, and a media capability collection outside obtaining is sorted in the preferential selection of definite codec that keeps; And
Media negotiation capability set processing module is used for keeping the codec that satisfies the current network rating result in the media negotiation capability set that has obtained when installing as the callee, and sorts according to the preferential selection of the codec that keeps, and determines the media negotiation result.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100761105A CN101465926B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing call through network telephone gateway |
| PCT/CN2009/075276 WO2010078784A1 (en) | 2009-01-07 | 2009-12-03 | Method and apparatus for network-phone gateway implementing call processing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100761105A CN101465926B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing call through network telephone gateway |
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| Publication Number | Publication Date |
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| CN101465926A true CN101465926A (en) | 2009-06-24 |
| CN101465926B CN101465926B (en) | 2011-10-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100761105A Expired - Fee Related CN101465926B (en) | 2009-01-07 | 2009-01-07 | Method and device for processing call through network telephone gateway |
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| CN (1) | CN101465926B (en) |
| WO (1) | WO2010078784A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078784A1 (en) * | 2009-01-07 | 2010-07-15 | 中兴通讯股份有限公司 | Method and apparatus for network-phone gateway implementing call processing |
| CN104486293A (en) * | 2014-11-25 | 2015-04-01 | 中国电子科技集团公司第三十研究所 | Media negotiation method and system based on network and terminal capability under wireless VoIP (Voice Over Internet Protocol) environment |
| WO2016091154A1 (en) * | 2014-12-09 | 2016-06-16 | 华为技术有限公司 | Method for determining media capabilities and call control network element |
| CN107181723A (en) * | 2016-03-11 | 2017-09-19 | 中兴通讯股份有限公司 | A kind of media coding/decoding negotiation method and terminal device |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE502005001730D1 (en) * | 2004-02-06 | 2007-11-29 | Nokia Siemens Networks Gmbh | METHOD FOR NEGOTIATING BEARING FEATURES IN IP NETWORKS |
| CN100461663C (en) * | 2005-08-01 | 2009-02-11 | 华为技术有限公司 | Code/decode type confirming method |
| CN1921478B (en) * | 2005-08-26 | 2011-09-14 | 华为技术有限公司 | Business signal transmitting method based on network agreement |
| CN101395882B (en) * | 2006-03-02 | 2013-03-13 | 艾利森电话股份有限公司 | Wideband codec negotiation |
| US8488447B2 (en) * | 2006-06-30 | 2013-07-16 | Centurylink Intellectual Property Llc | System and method for adjusting code speed in a transmission path during call set-up due to reduced transmission performance |
| CN101465926B (en) * | 2009-01-07 | 2011-10-26 | 中兴通讯股份有限公司 | Method and device for processing call through network telephone gateway |
-
2009
- 2009-01-07 CN CN2009100761105A patent/CN101465926B/en not_active Expired - Fee Related
- 2009-12-03 WO PCT/CN2009/075276 patent/WO2010078784A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010078784A1 (en) * | 2009-01-07 | 2010-07-15 | 中兴通讯股份有限公司 | Method and apparatus for network-phone gateway implementing call processing |
| CN104486293A (en) * | 2014-11-25 | 2015-04-01 | 中国电子科技集团公司第三十研究所 | Media negotiation method and system based on network and terminal capability under wireless VoIP (Voice Over Internet Protocol) environment |
| CN104486293B (en) * | 2014-11-25 | 2018-09-28 | 中国电子科技集团公司第三十研究所 | Media consulation method based on network and terminal capability under Wireless VoIP environment and system |
| WO2016091154A1 (en) * | 2014-12-09 | 2016-06-16 | 华为技术有限公司 | Method for determining media capabilities and call control network element |
| CN107181723A (en) * | 2016-03-11 | 2017-09-19 | 中兴通讯股份有限公司 | A kind of media coding/decoding negotiation method and terminal device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101465926B (en) | 2011-10-26 |
| WO2010078784A1 (en) | 2010-07-15 |
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